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// Portions Copyright [2019] Payara Foundation and/or affiliates

package com.sun.enterprise.admin.monitor.stats;

import org.glassfish.j2ee.statistics.RangeStatistic;
import org.glassfish.j2ee.statistics.CountStatistic;
import org.glassfish.j2ee.statistics.Stats;

/**
 * A Stats interface to represent the statistical data about 
 * Work Management in the Connector Module
 * 
 * @author  Murali Vempaty
 * @since   SJSAS8.1
 */
public interface ConnectorWorkMgmtStats extends Stats {
    
    /**
     * returns the current, low & high counts of the work objects executed for
     * a connector module since the last reset. This is an aggregate of all the
     * doWork, doSchedule, and doStart work objects initiated by the connector
     * module
     * @return RangeStatistic
     */
    public RangeStatistic getActiveWorkCount();
    
    /**
     * indicates the current, high & low of the number of work objects waiting 
     * in the work queue before executing, since the last reset
     * @return RangeStatistic
     */
    public RangeStatistic getWaitQueueLength();
    
    /**
     * indicates the longest and shorted wait of a work object in the work queue
     * before it gets executed, since the last reset
     * @return RangeStatistic
     */
    public RangeStatistic getWorkRequestWaitTime();
    
    /**
     * indicates the number of work objects submitted by a connector module 
     *  for execution, since the last reset
     * @return CountStatistic
     */
    public CountStatistic getSubmittedWorkCount();
    
    /**
     * indicates the number of work objects rejected by the Application Server
     * per connector module, since the last reset.
     * @return CountStatistic
     */
    public CountStatistic getRejectedWorkCount();
    
    /**
     * indicates the number of work objects that were completed by the 
     * Application Server per connector module, since the last reset.
     * @return CountStatistic
     */
    public CountStatistic getCompletedWorkCount();
    
}
